PRISM

PRISM is a 3D radiation system introduced in the release 1.0.27_X4998 which makes use of block explosion resistance to determine spreading.

Basically, PRISM provides a somewhat "realistic" radiation system to the game, making advantage of being still (sub) chunk based, and also being able to also be effectively blocked (either with thick concrete walls or mountains), or also high-resistant blocks (and a couple less resistant ones). Basically, radiation on both sides of a wall in the middle of a chunk will still be the same, the wall will however affect neighbouring chunks.

According to the release page, unlike the 1.12.2 "pocket" system, radiation isn't perfectly sealed, blocks that are in a 16x16x16 area are summed up and used as a divisor.

This is also comparable to what pressure is in The Powder Toy, a famous sandbox game which utilizes a pressure and heat system that can be both turned off.

PRISM is disabled by default, and can be toggled on in the hbm.cfg file located within your Minecraft installation.

History

• 1.0.27_X5000:
  • Changed PRISM's resistance function to work more like armor resistance instead of a straight divider
  • Capped PRISM's resistance value per block to 100 (bit over concrete)
  • Fixed PRISM crashing the game instantly.
  • Fixed PRISM's resistance check being on backwards.
  • Fixed PRISM's resistance check omitting the wrong layers.
• 1.0.27_X4998:
  • Introduced.